我有2個問題想請教大家，麻煩大家告訴我為什麼 感謝大家幫忙
1
The education of "bilingual" students in the U.S. has always been closely 39
political, economic and socialconcerns. As a nation of immigrants, the U.S.
was founded by colonists from multiple language backgrounds andnationalities.
______ early private schools were quickly established to teach colonial children,
schools were generallysegregated by communities so that students studied in
their native languages. As immigrant communities (mainly fromEurope) vied for
political and economic power in the new world, language and nationality
differences raised tensionsbetween neighbors.
A) Because B) Since C) Unless D) While 答案是D
請問為什麼不能用A或B，而是用while?
2
The Johnsons______ to Japan for a 5-day vacation last week, but their trip
was cancelled due to the terribleweather conditions.
a) were going B) had gone C) did not go D) could not be going 答案是A
請問我的想法是C，他們一家人沒去，行程還會因為天氣取消
我不懂為什麼他們去了，行程還會取消?

第一題選AB你可以試著翻譯嗎？ " target="_blank" rel="nofollow">

第2題 C 也可以試著翻譯看看？

1.while是although的意思2.but後面說行程被取消，所以前面說「計畫」要去日本，語意才通順。若是C，前面變成上週沒去，後面又有個but子句，其意義並非與前面子句轉折，語意不通順。

第二題 were going to 本來計畫要去 的意思選c 的話，本來就沒有要去 就不會因為天氣而取消了

謝謝大家